diff options
Diffstat (limited to 'indra/newview/llxmlrpctransaction.cpp')
| -rw-r--r-- | indra/newview/llxmlrpctransaction.cpp | 103 |
1 files changed, 95 insertions, 8 deletions
diff --git a/indra/newview/llxmlrpctransaction.cpp b/indra/newview/llxmlrpctransaction.cpp index 70859e8ea5..da61840761 100644 --- a/indra/newview/llxmlrpctransaction.cpp +++ b/indra/newview/llxmlrpctransaction.cpp @@ -31,6 +31,9 @@ */ #include "llviewerprecompiledheaders.h" +#include <openssl/x509_vfy.h> +#include <openssl/ssl.h> +#include "llsecapi.h" #include "llxmlrpctransaction.h" #include "llxmlrpclistener.h" @@ -176,6 +179,8 @@ public: std::string mResponseText; XMLRPC_REQUEST mResponse; + std::string mCertStore; + LLPointer<LLCertificate> mErrorCert; Impl(const std::string& uri, XMLRPC_REQUEST request, bool useGzip); Impl(const std::string& uri, @@ -190,7 +195,8 @@ public: private: void init(XMLRPC_REQUEST request, bool useGzip); - + static int _sslCertVerifyCallback(X509_STORE_CTX *ctx, void *param); + static CURLcode _sslCtxFunction(CURL * curl, void *sslctx, void *param); static size_t curlDownloadCallback( char* data, size_t size, size_t nmemb, void* user_data); }; @@ -228,8 +234,74 @@ LLXMLRPCTransaction::Impl::Impl(const std::string& uri, XMLRPC_RequestFree(request, 1); } +// _sslCertVerifyCallback +// callback called when a cert verification is requested. +// calls SECAPI to validate the context +int LLXMLRPCTransaction::Impl::_sslCertVerifyCallback(X509_STORE_CTX *ctx, void *param) +{ + LLXMLRPCTransaction::Impl *transaction = (LLXMLRPCTransaction::Impl *)param; + LLPointer<LLCertificateStore> store = gSecAPIHandler->getCertificateStore(transaction->mCertStore); + LLPointer<LLCertificateChain> chain = gSecAPIHandler->getCertificateChain(ctx); + LLSD validation_params = LLSD::emptyMap(); + LLURI uri(transaction->mURI); + validation_params[CERT_HOSTNAME] = uri.hostName(); + try + { + chain->validate(VALIDATION_POLICY_SSL, store, validation_params); + } + catch (LLCertValidationTrustException& cert_exception) + { + // this exception is is handled differently than the general cert + // exceptions, as we allow the user to actually add the certificate + // for trust. + // therefore we pass back a different error code + // NOTE: We're currently 'wired' to pass around CURL error codes. This is + // somewhat clumsy, as we may run into errors that do not map directly to curl + // error codes. Should be refactored with login refactoring, perhaps. + transaction->mCurlCode = CURLE_SSL_CACERT; + // set the status directly. set curl status generates error messages and we want + // to use the fixed ones from the exceptions + transaction->setStatus(StatusCURLError, cert_exception.getMessage(), std::string()); + // We should probably have a more generic way of passing information + // back to the error handlers. + transaction->mErrorCert = cert_exception.getCert(); + return 0; + } + catch (LLCertException& cert_exception) + { + transaction->mCurlCode = CURLE_SSL_PEER_CERTIFICATE; + // set the status directly. set curl status generates error messages and we want + // to use the fixed ones from the exceptions + transaction->setStatus(StatusCURLError, cert_exception.getMessage(), std::string()); + transaction->mErrorCert = cert_exception.getCert(); + return 0; + } + catch (...) + { + // any other odd error, we just handle as a connect error. + transaction->mCurlCode = CURLE_SSL_CONNECT_ERROR; + transaction->setCurlStatus(CURLE_SSL_CONNECT_ERROR); + return 0; + } + return 1; +} +// _sslCtxFunction +// Callback function called when an SSL Context is created via CURL +// used to configure the context for custom cert validate(<, <#const & xs#>, <#T * #>, <#long #>)tion +// based on SECAPI +CURLcode LLXMLRPCTransaction::Impl::_sslCtxFunction(CURL * curl, void *sslctx, void *param) +{ + SSL_CTX * ctx = (SSL_CTX *) sslctx; + // disable any default verification for server certs + SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, NULL); + // set the verification callback. + SSL_CTX_set_cert_verify_callback(ctx, _sslCertVerifyCallback, param); + // the calls are void + return CURLE_OK; + +} void LLXMLRPCTransaction::Impl::init(XMLRPC_REQUEST request, bool useGzip) { @@ -237,6 +309,7 @@ void LLXMLRPCTransaction::Impl::init(XMLRPC_REQUEST request, bool useGzip) { mCurlRequest = new LLCurlEasyRequest(); } + mErrorCert = NULL; if (gSavedSettings.getBOOL("BrowserProxyEnabled")) { @@ -252,11 +325,13 @@ void LLXMLRPCTransaction::Impl::init(XMLRPC_REQUEST request, bool useGzip) // mCurlRequest->setopt(CURLOPT_VERBOSE, 1); // usefull for debugging mCurlRequest->setopt(CURLOPT_NOSIGNAL, 1); mCurlRequest->setWriteCallback(&curlDownloadCallback, (void*)this); - BOOL vefifySSLCert = !gSavedSettings.getBOOL("NoVerifySSLCert"); + BOOL vefifySSLCert = !gSavedSettings.getBOOL("NoVerifySSLCert"); + mCertStore = gSavedSettings.getString("CertStore"); mCurlRequest->setopt(CURLOPT_SSL_VERIFYPEER, vefifySSLCert); mCurlRequest->setopt(CURLOPT_SSL_VERIFYHOST, vefifySSLCert ? 2 : 0); // Be a little impatient about establishing connections. mCurlRequest->setopt(CURLOPT_CONNECTTIMEOUT, 40L); + mCurlRequest->setSSLCtxCallback(_sslCtxFunction, (void *)this); /* Setting the DNS cache timeout to -1 disables it completely. This might help with bug #503 */ @@ -342,11 +417,19 @@ bool LLXMLRPCTransaction::Impl::process() { if (result != CURLE_OK) { - setCurlStatus(result); - llwarns << "LLXMLRPCTransaction CURL error " - << mCurlCode << ": " << mCurlRequest->getErrorString() << llendl; - llwarns << "LLXMLRPCTransaction request URI: " - << mURI << llendl; + if ((result != CURLE_SSL_PEER_CERTIFICATE) && + (result != CURLE_SSL_CACERT)) + { + // if we have a curl error that's not already been handled + // (a non cert error), then generate the error message as + // appropriate + setCurlStatus(result); + + llwarns << "LLXMLRPCTransaction CURL error " + << mCurlCode << ": " << mCurlRequest->getErrorString() << llendl; + llwarns << "LLXMLRPCTransaction request URI: " + << mURI << llendl; + } return true; } @@ -424,7 +507,6 @@ void LLXMLRPCTransaction::Impl::setStatus(EStatus status, case StatusComplete: mStatusMessage = "(done)"; break; - default: // Usually this means that there's a problem with the login server, // not with the client. Direct user to status page. @@ -540,6 +622,11 @@ std::string LLXMLRPCTransaction::statusMessage() return impl.mStatusMessage; } +LLPointer<LLCertificate> LLXMLRPCTransaction::getErrorCert() +{ + return impl.mErrorCert; +} + std::string LLXMLRPCTransaction::statusURI() { return impl.mStatusURI; |